Sammanfattning

With climate change, plant-feeding insects increase their number of annual generations (voltinism). However, to what degree the emergence of a new herbivore generation affects the parasitism rate has not been explored. We performed a field experiment to test whether the parasitism rate differs between the first and the second generations of a specialist leaf miner (Tischeria ekebladella), both in the naturally univoltine and bivoltine parts of the leaf miner's distribution. We found an interactive effect between herbivore generation and geographical range on the parasitism rate. The parasitism rate was higher in the first compared to the second host generation in the part of the range that is naturally univoltine, whereas it did not differ between generations in the bivoltine range. Our experiment highlights that shifts in herbivore voltinism might release top-down control, with potential consequences for natural and applied systems.

Publicerad i

PLoS ONE
2023, Volym: 18, nummer: 11, artikelnummer: e0294275
Utgivare: PUBLIC LIBRARY SCIENCE

SLU författare

• Drobyshev, Igor

  • Institutionen för sydsvensk skogsvetenskap, Sveriges lantbruksuniversitet
    

• Klisho, Tatiana

  • Institutionen för sydsvensk skogsvetenskap, Sveriges lantbruksuniversitet
    

Associerade SLU-program

SLU Nätverk växtskydd


UKÄ forskningsämne

Ekologi


Publikationens identifierare

DOI: https://doi.org/10.1371/journal.pone.0294275

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/127877